We are using Tomcat 5.0.28. I know how to run the server in debug mode. What I am researching is how to run the server in debug mode if the server has been started as a service. In other words is there a way to pass some parameters or reconfigure the service (that calls tomcat5.exe) without modifying the catalina.bat file. If this is not possible what is the easiest way to create another service that will use modified catalina.bat file? Has anybody done that so far?